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单词 metastasis
释义

Definition of metastasis in English:

metastasis

nounPlural metastases mɪˈtastəsɪsməˈtæstəsəs
mass nounMedicine
  • 1The development of secondary malignant growths at a distance from a primary site of cancer.

    〔医〕(恶性肿瘤)转移

    an increased risk of metastasis
    Example sentencesExamples
    • Breast tumors may also be the result of metastasis from primary prostate cancer.
    • Patients with a diagnosis of granular cell tumor should have a complete physical examination to exclude other primary tumors or metastasis from an aggressive malignant tumor.
    • Six years later, a fine-needle aspirate of a cervical vertebra showed malignant cells consistent with metastasis from a primary lung carcinoma.
    • Preoperatively, radiation is delivered to decrease the risk of local recurrence, prevent the development of distant metastasis and reduce tumor size to permit sphincter-preserving surgery.
    • A malignant neoplasm in the neck can arise as a primary tumor or as metastasis from the upper aerodigestive tract or a distant site.
    Synonyms
    malignant growth, cancerous growth, malignant tumour, tumour, malignancy
    1. 1.1count noun A metastatic growth.
      the patient developed pleural and liver metastases
      Example sentencesExamples
      • Brain metastases occasionally produce psychological symptoms before metastatic disease is discovered.
      • Oxaliplatin will be given only to patients who have liver metastases that may be shrunk to operable size.
      • In contrast, liver metastases are much more common.
      • Laparoscopy is used to examine the parietal peritoneum, liver, and other metastases of the viscera.
      • However, only in 3 of these cases was the morphologic appearance in the metastasis so well differentiated as to be considered benign if taken out of context.
      • This eliminates perverse growth, anticipating the metastasis that is seeking to re-enter the system.
      • The liver is one of the most common sites for metastases from carcinoma.
      • Five cases represented metastases from cutaneous squamous carcinomas.
      • Sixteen cervical lymph nodes with metastasis of oral cancer and 20 benign lymph nodes were studied.
      • Patients with certain rare tumours, such as liver metastases from neuroendocrine disease and sarcomas, can do well for several years.
      • GTP inhibited the levels of urokinase plasminogen activator as well as matrix metalloproteinases 2 and 9, cellular molecules linked to the metastasis.
      • Interestingly, contrast enhanced computed tomography identified liver metastases in only three of the 17 patients.
      • These tumors tend to have lymph node metastases as seen in papillary carcinoma rather than hematogenous spread.
      • Computed tomography of the abdomen and lung immediately before her death showed liver and lung metastases.
      • With the exception of liver metastases of colorectal cancer, tumour deposits are almost always multiple and seldom amenable to resection.
      • Liver metastases frequently present with multiple hepatic lesions on diagnosis.
      • Ocular melanoma metastatic to other sites generally occurs in association with liver metastases.
      • These findings were thought to be consistent with carcinoid tumor with metastases to the liver.
      • One must exclude metastases from carcinoids of more typical sites of origin.
      • Lung metastases in the absence of liver metastases are usually explained by this mechanism.
      • Most centres in the United Kingdom recommend computed tomography of the chest to pick up synchronous early lung tumours or metastases.
      • The purpose of this study was to investigate in detail the pathologic aspects of thyroid cancers with bone metastasis and to compare these with various clinical parameters.
      • It is essential to confirm the diagnosis and determine whether cervical lymph nodes are involved or there are other primary tumours or metastases.
      • The case of Paget disease with ductal carcinoma in situ had no nodal metastases.
      • We report a case in which cutaneous metastases from a melanoma imitated herpes zoster.

Derivatives

  • metastatic

  • adjective mɛtəˈstatɪkˌmɛdəˈstædɪk
    Medicine
    • Characterized or produced by metastasis.

      metastatic prostate cancer
      Example sentencesExamples
      • metastatic lesions
      • Unlike carcinomas, metastatic sarcomas generally occur deeper and may not ulcerate the mucosa.
      • The echocardiography and the pathologic examination revealed a metastatic melanoma.
      • Meningeal spread is not uncommon in cases of intracranial gliomas or metastatic carcinoma.

Origin

Late 16th century (as a rhetorical term, meaning 'rapid transition from one point to another'): from Greek, literally 'removal or change', from methistanai 'to change'.

Definition of metastasis in US English:

metastasis

nounməˈtæstəsəsməˈtastəsəs
Medicine
  • 1The development of secondary malignant growths at a distance from a primary site of cancer.

    〔医〕(恶性肿瘤)转移

    an increased risk of metastasis
    Example sentencesExamples
    • Breast tumors may also be the result of metastasis from primary prostate cancer.
    • A malignant neoplasm in the neck can arise as a primary tumor or as metastasis from the upper aerodigestive tract or a distant site.
    • Six years later, a fine-needle aspirate of a cervical vertebra showed malignant cells consistent with metastasis from a primary lung carcinoma.
    • Patients with a diagnosis of granular cell tumor should have a complete physical examination to exclude other primary tumors or metastasis from an aggressive malignant tumor.
    • Preoperatively, radiation is delivered to decrease the risk of local recurrence, prevent the development of distant metastasis and reduce tumor size to permit sphincter-preserving surgery.
    Synonyms
    malignant growth, cancerous growth, malignant tumour, tumour, malignancy
    1. 1.1 A metastatic growth.
      the patient developed pleural and liver metastases
      Example sentencesExamples
      • These tumors tend to have lymph node metastases as seen in papillary carcinoma rather than hematogenous spread.
      • Interestingly, contrast enhanced computed tomography identified liver metastases in only three of the 17 patients.
      • Lung metastases in the absence of liver metastases are usually explained by this mechanism.
      • GTP inhibited the levels of urokinase plasminogen activator as well as matrix metalloproteinases 2 and 9, cellular molecules linked to the metastasis.
      • The case of Paget disease with ductal carcinoma in situ had no nodal metastases.
      • Brain metastases occasionally produce psychological symptoms before metastatic disease is discovered.
      • This eliminates perverse growth, anticipating the metastasis that is seeking to re-enter the system.
      • Sixteen cervical lymph nodes with metastasis of oral cancer and 20 benign lymph nodes were studied.
      • One must exclude metastases from carcinoids of more typical sites of origin.
      • Liver metastases frequently present with multiple hepatic lesions on diagnosis.
      • Ocular melanoma metastatic to other sites generally occurs in association with liver metastases.
      • Five cases represented metastases from cutaneous squamous carcinomas.
      • Computed tomography of the abdomen and lung immediately before her death showed liver and lung metastases.
      • Patients with certain rare tumours, such as liver metastases from neuroendocrine disease and sarcomas, can do well for several years.
      • With the exception of liver metastases of colorectal cancer, tumour deposits are almost always multiple and seldom amenable to resection.
      • It is essential to confirm the diagnosis and determine whether cervical lymph nodes are involved or there are other primary tumours or metastases.
      • Oxaliplatin will be given only to patients who have liver metastases that may be shrunk to operable size.
      • Most centres in the United Kingdom recommend computed tomography of the chest to pick up synchronous early lung tumours or metastases.
      • The purpose of this study was to investigate in detail the pathologic aspects of thyroid cancers with bone metastasis and to compare these with various clinical parameters.
      • Laparoscopy is used to examine the parietal peritoneum, liver, and other metastases of the viscera.
      • We report a case in which cutaneous metastases from a melanoma imitated herpes zoster.
      • These findings were thought to be consistent with carcinoid tumor with metastases to the liver.
      • The liver is one of the most common sites for metastases from carcinoma.
      • However, only in 3 of these cases was the morphologic appearance in the metastasis so well differentiated as to be considered benign if taken out of context.
      • In contrast, liver metastases are much more common.

Origin

Late 16th century (as a rhetorical term, meaning ‘rapid transition from one point to another’): from Greek, literally ‘removal or change’, from methistanai ‘to change’.

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更新时间:2024/12/27 14:16:33